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| MAX1106 Datasheet, PDF (7/16 Pages) Maxim Integrated Products – Single-Supply, Low-Power, Serial 8-Bit ADCs | |||
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Single-Supply, Low-Power,
Serial 8-Bit ADCs
ELECTRICAL CHARACTERISTICSâMAX1107 (continued)
(VDD = +4.5V to +5.5V; IN- = GND; fSCLK = 2MHz; 25ksps conversion rate; 1µF capacitor at REFOUT; external +4.096V reference at
REFIN; TA = TMIN to TMAX; unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
SCLK Pulse Width Low
SCLK Low to Output Disable
SCLK Low to CONVST Rise
SHDN Fall to Output Disable
Wake-Up Time
tCL
tTR
tSCC
tSHDN
tWAKE
Figure 2, CLOAD = 100pF
Figure 2, CLOAD = 100pF
External reference
Internal reference (Note 9)
200
ns
240
ns
100
ns
240
ns
20
µs
12
ms
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range has
been calibrated.
See Typical Operating Characteristics.
VREFOUT = +2.048V (MAX1106), VREFOUT = +4.096V (MAX1107), offset nulled.
Common-mode range (IN+, IN-) GND to VDD.
REFOUT supplies typically 2.5mA under normal operating conditions.
External load should not change during the conversion for specified accuracy.
Power consumption with CMOS levels.
Measured as  VFS(2.7V) - VFS(3.6V) for MAX1106, and measured as  VFS(4.5V) - VFS(5.5V) for MAX1107.
1µF at REFOUT, internal reference settling to 0.5LSB.
Typical Operating Characteristics
(VDD = +3.0V (MAX1106), VDD = +5.0V (MAX1107); fSCLK = 2MHz; 25ksps conversion rate; external reference; 1µF at REFOUT;
TA = +25°C; unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
200
MAX1106 (VDD = 2.7V TO 5.5V)
175
MAX1107 (VDD = 4.5V TO 5.5V)
INTERNAL REFERENCE
150
CLOAD = 10pF
DOUT = 10101010
125
100
75
50
2.5
CLOAD = 47pF
DOUT = 10101010
CLOAD = 10pF
DOUT = 11111111
3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. TEMPERATURE
200
DOUT = 10101010
CLOAD = 10pF
175 INTERNAL REFERENCE
150
125
MAX1107, VDD = 5.0V
100
MAX1106, VDD = 3.0V
75
50
-40 -20
0 20 40 60
TEMPERATURE (°C)
80 100
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________ 7
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